EXPRESS PROTRACTOR

EXPRESS PROTRACTORDepending on the processed material from each drill must be properly sharpened. To verify the correct angle will help a specially prepared square plate of copper or aluminium with a thickness of 1 mm.

To become operational protractor enough to cut it cut, as shown in the picture: a large cutout at an angle of 120 degrees, the other half is 60 degrees and the surviving corner of a square is 90.

Recommend to read

  • HELPED MAGNETHELPED MAGNET
    One summer, I dropped the bucket into the well After many unsuccessful attempts to get him a metal "cat", decided to apply for the "guidance" cats of the ring magnet from a powerful...
  • SUBARU B9 TRIBECASUBARU B9 TRIBECA
    This Japanese car belongs to the group of mid-size AWD SUV-crossover which production was designed primarily for the American market. In the standard version it is designed for five...